package com.example.lsnetchatplugin;
 
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
 
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Map;
 
/**
 * Http请求的工具类
 * 
 * @author suming
 * 
 */
public class HttpUtils {
 
	//超时时间
	private static final int TIMEOUT_IN_MILLIONS = 10000;
 
	public interface CallBack {
		void onRequestComplete(String result);
		void onRequestError(String result);
	}
 
	/**
	 * 异步的Get请求
	 * 
	 * @param urlStr
	 * @param callBack
	 */
	public static void doGetAsyn(final String urlStr, final CallBack callBack) {
		new Thread() {
			public void run() {
				try {
					String result = doGet(urlStr);
					if (callBack != null) {
						callBack.onRequestComplete(result);
					}
				} catch (Exception e) {
					e.printStackTrace();
					if (callBack != null) {
						callBack.onRequestError(e.toString());
					}
				}
 
			};
		}.start();
	}
 
	/**
	 * 异步的Post请求
	 * 
	 * @param urlStr
	 * @param params
	 * @param callBack
	 * @throws Exception
	 */
	public static void doPostAsyn(final String urlStr, final String params, final CallBack callBack) {
		new Thread() {
			public void run() {
				try {
					String result = doPost(urlStr, params);
					if (callBack != null) {
						callBack.onRequestComplete(result);
					}
				} catch (Exception e) {
					e.printStackTrace();
					if (callBack != null) {
						callBack.onRequestError(e.toString());
					}
				}
			};
		}.start();
 
	}
 
	/**
	 * Get请求，获得返回数据
	 * 
	 * @param urlStr
	 * @return
	 * @throws Exception
	 */
	public static String doGet(String urlStr) {
		URL url = null;
		HttpURLConnection conn = null;
		InputStream is = null;
		ByteArrayOutputStream baos = null;
		try {

			// String encodURL = URLEncoder.encode(urlStr, "UTF-8");
			String encodURL = Uri.encode(urlStr);
			encodURL = encodURL.replaceAll("%3A", ":");
			encodURL = encodURL.replaceAll("%2F", "/");
			encodURL = encodURL.replaceAll("%3F", "?");
			encodURL = encodURL.replaceAll("%26", "&");
			encodURL = encodURL.replaceAll("%3D", "=");
			url = new URL(encodURL);
			conn = (HttpURLConnection) url.openConnection();
			conn.setReadTimeout(TIMEOUT_IN_MILLIONS);
			conn.setConnectTimeout(TIMEOUT_IN_MILLIONS);
			conn.setRequestMethod("GET");
			conn.setRequestProperty("accept", "*/*");
			conn.setRequestProperty("connection", "Keep-Alive");
			conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
			conn.setRequestProperty("charset", "utf-8");
			if (conn.getResponseCode() == 200) {
 
				is = conn.getInputStream();
 
				baos = new ByteArrayOutputStream();
				int len = -1;
				byte[] buf = new byte[128];
 
				while ((len = is.read(buf)) != -1) {
					baos.write(buf, 0, len);
				}
				baos.flush();
				if (baos.toString()==null||baos.toString().equals("")) {
				} else {
				}
				return baos.toString();
			} else {
				throw new RuntimeException(" responseCode is not 200 ... ");
			}
 
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				if (is != null)
					is.close();
			} catch (IOException e) {
			}
			try {
				if (baos != null)
					baos.close();
			} catch (IOException e) {
			}
			conn.disconnect();
		}
		return null;
	}
 
	/**
	 * 向指定 URL 发送POST方法的请求
	 * 
	 * @param url
	 *            发送请求的 URL
	 * @param param
	 *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
	 * @return 所代表远程资源的响应结果
	 * @throws Exception
	 */
	public static String doPost(String url, String param) {
		PrintWriter out = null;
		BufferedReader in = null;
		String result = "";
		try {
			URL realUrl = new URL(url);
			// 打开和URL之间的连接
			HttpURLConnection conn = (HttpURLConnection) realUrl.openConnection();
			// 设置通用的请求属性
			conn.setRequestProperty("accept", "*/*");
			conn.setRequestProperty("connection", "Keep-Alive");
			conn.setRequestMethod("POST");
			conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
			conn.setRequestProperty("charset", "utf-8");
			conn.setUseCaches(false);
			// 发送POST请求必须设置如下两行
			conn.setDoOutput(true);
			conn.setDoInput(true);
			conn.setReadTimeout(TIMEOUT_IN_MILLIONS);
			conn.setConnectTimeout(TIMEOUT_IN_MILLIONS);
 
			if (param != null && !param.trim().equals("")) {
				// 获取URLConnection对象对应的输出流
				out = new PrintWriter(conn.getOutputStream());
				// 发送请求参数
				out.print(param);
				// flush输出流的缓冲
				out.flush();
			}
			// 定义BufferedReader输入流来读取URL的响应
			in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
			String line;
			while ((line = in.readLine()) != null) {
				result += line;
			}
			if (result .equals("{}")){
				result = conn.getResponseCode()+"";
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		// 使用finally块来关闭输出流、输入流
		finally {
			try {
				if (out != null) {
					out.close();
				}
				if (in != null) {
					in.close();
				}
			} catch (IOException ex) {
				ex.printStackTrace();
			}
		}
		if (result==null&&result.equals("")) {
		} else {
		}
 
		return result;
	}
 
	/**
	 * 使用Post上传文件
	 * 
	 * @param actionUrl
	 * @param params
	 * @param files
	 * @return
	 * @throws IOException
	 */
	public static String post(String actionUrl, Map<String, String> params, Map<String, File> files)
			throws IOException {
 
		String BOUNDARY = java.util.UUID.randomUUID().toString();
		String PREFIX = "--", LINEND = "\r\n";
		String MULTIPART_FROM_DATA = "multipart/form-data";
		String CHARSET = "UTF-8";
		URL uri = new URL(actionUrl);
		HttpURLConnection conn = (HttpURLConnection) uri.openConnection();
		conn.setReadTimeout(5 * 1000);
		conn.setDoInput(true);// 允许输入
		conn.setDoOutput(true);// 允许输出
		conn.setUseCaches(false);
		conn.setRequestMethod("POST"); // Post方式
		conn.setRequestProperty("connection", "keep-alive");
		conn.setRequestProperty("Charsert", "UTF-8");
		conn.setRequestProperty("Content-Type", MULTIPART_FROM_DATA + ";boundary=" + BOUNDARY);
 
		// 首先组拼文本类型的参数
		StringBuilder sb = new StringBuilder();
		for (Map.Entry<String, String> entry : params.entrySet()) {
			sb.append(PREFIX);
			sb.append(BOUNDARY);
			sb.append(LINEND);
			sb.append("Content-Disposition: form-data; name=\"" + entry.getKey() + "\"" + LINEND);
			sb.append("Content-Type: text/plain; charset=" + CHARSET + LINEND);
			sb.append("Content-Transfer-Encoding: 8bit" + LINEND);
			sb.append(LINEND);
			sb.append(entry.getValue());
			sb.append(LINEND);
		}
 
		DataOutputStream outStream = new DataOutputStream(conn.getOutputStream());
		outStream.write(sb.toString().getBytes());
 
		// 发送文件数据
		if (files != null)
			for (Map.Entry<String, File> file : files.entrySet()) {
				StringBuilder sb1 = new StringBuilder();
				sb1.append(PREFIX);
				sb1.append(BOUNDARY);
				sb1.append(LINEND);
				sb1.append(
						"Content-Disposition: form-data; name=\"file\"; filename=\"" + file.getKey() + "\"" + LINEND);
				sb1.append("Content-Type: application/octet-stream; charset=" + CHARSET + LINEND);
				sb1.append(LINEND);
				outStream.write(sb1.toString().getBytes());
				InputStream is = new FileInputStream(file.getValue());
				byte[] buffer = new byte[1024];
				int len = 0;
				while ((len = is.read(buffer)) != -1) {
					outStream.write(buffer, 0, len);
				}
 
				is.close();
				outStream.write(LINEND.getBytes());
			}
 
		// 请求结束标志
		byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINEND).getBytes();
		outStream.write(end_data);
		outStream.flush();
 
		// 得到响应码
		int res = conn.getResponseCode();
		InputStream in = conn.getInputStream();
		InputStreamReader isReader = new InputStreamReader(in);
		BufferedReader bufReader = new BufferedReader(isReader);
		String line = null;
		String data = "OK";
		while ((line = bufReader.readLine()) == null)
			data += line;
		System.out.println(data);
		if (res == 200) {
			int ch;
			StringBuilder sb2 = new StringBuilder();
			while ((ch = in.read()) != -1) {
				sb2.append((char) ch);
			}
		}
		outStream.close();
		conn.disconnect();
		return in.toString();
	}
 
	/**
	 * 获取网落图片资源
	 * 
	 * @param url
	 * @return
	 */
	public static Bitmap getHttpBitmap(String url) {
		URL myFileURL;
		Bitmap bitmap = null;
		try {
			myFileURL = new URL(url);
			// 获得连接
			HttpURLConnection conn = (HttpURLConnection) myFileURL.openConnection();
			// 设置超时时间为6000毫秒，conn.setConnectionTiem(0);表示没有时间限制
			conn.setConnectTimeout(6000);
			// 连接设置获得数据流
			conn.setDoInput(true);
			// 不使用缓存
			conn.setUseCaches(false);
			// 这句可有可无，没有影响
			// conn.connect();
			// 得到数据流
			InputStream is = conn.getInputStream();
			// 解析得到图片
			bitmap = BitmapFactory.decodeStream(is);
			// 关闭数据流
			is.close();
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		}
 
		return bitmap;
 
	}
 
}